/*
silverPDF is sponsored by Aleyant Systems (http://www.aleyant.com)

silverPDF is based on PdfSharp (http://www.pdfsharp.net) and iTextSharp (http://itextsharp.sourceforge.net)

Developers: Ai_boy (aka Oleksii Okhrymenko)

Permission is hereby granted, free of charge, to any person
obtaining a copy of this software and associated documentation
files (the "Software"), to deal in the Software without
restriction, including without limitation the rights to use,
copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following
conditions:

The above information and this permission notice shall be
included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR SPONSORS
BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.

*/
#region PDFsharp - A .NET library for processing PDF
//
// Authors:
//   Stefan Lange (mailto:Stefan.Lange@pdfsharp.com)
//
// Copyright (c) 2005-2008 empira Software GmbH, Cologne (Germany)
//
// http://www.pdfsharp.com
// http://sourceforge.net/projects/pdfsharp
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 
// DEALINGS IN THE SOFTWARE.
#endregion

using System;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Security;

namespace PdfSharp.Internal
{
  /// <summary>
  /// Required native Win32 calls. Don't know what to do under Mono.
  /// </summary>
  static class NativeMethods
  {
    /// <summary>
    /// Reflected from System.Drawing.SafeNativeMethods+LOGFONT
    /// </summary>
    //[SuppressUnmanagedCodeSecurity]
    [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Auto)]
    public class LOGFONT
    {
      // Preserve us for warning CS0649...
      LOGFONT(int dummy)
      {
        this.lfHeight = 0;
        this.lfWidth = 0;
        this.lfEscapement = 0;
        this.lfOrientation = 0;
        this.lfWeight = 0;
        this.lfItalic = 0;
        this.lfUnderline = 0;
        this.lfStrikeOut = 0;
        this.lfCharSet = 0;
        this.lfOutPrecision = 0;
        this.lfClipPrecision = 0;
        this.lfQuality = 0;
        this.lfPitchAndFamily = 0;
        this.lfFaceName = "";
      }
      public int lfHeight;
      public int lfWidth;
      public int lfEscapement;
      public int lfOrientation;
      public int lfWeight;
      public byte lfItalic;
      public byte lfUnderline;
      public byte lfStrikeOut;
      public byte lfCharSet;
      public byte lfOutPrecision;
      public byte lfClipPrecision;
      public byte lfQuality;
      public byte lfPitchAndFamily;
      [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 32)]
      public string lfFaceName;
      public override string ToString()
      {
        object[] objArray1 = new object[0x1c] 
        { 
          "lfHeight=", this.lfHeight, 
          ", lfWidth=", this.lfWidth, 
          ", lfEscapement=", this.lfEscapement, 
          ", lfOrientation=", this.lfOrientation, 
          ", lfWeight=", this.lfWeight, 
          ", lfItalic=", this.lfItalic, 
          ", lfUnderline=", this.lfUnderline, 
          ", lfStrikeOut=", this.lfStrikeOut, 
          ", lfCharSet=", this.lfCharSet, 
          ", lfOutPrecision=", this.lfOutPrecision, 
          ", lfClipPrecision=", this.lfClipPrecision, 
          ", lfQuality=", this.lfQuality, 
          ", lfPitchAndFamily=", this.lfPitchAndFamily, 
          ", lfFaceName=", this.lfFaceName
        };
        return string.Concat(objArray1);
      }
      public LOGFONT() { }
    }

    [DllImport("user32.dll")]
    public static extern IntPtr GetDC(IntPtr hwnd);

    [DllImport("user32.dll")]
    public static extern IntPtr ReleaseDC(IntPtr hwnd, IntPtr hdc);

    [DllImport("gdi32.dll", SetLastError = true)]
    public static extern int GetFontData(
      IntPtr hdc, // handle to DC
      uint dwTable, // metric table name
      uint dwOffset, // offset into table
      byte[] lpvBuffer, // buffer for returned data
      int cbData // length of data
      );

    [DllImport("gdi32.dll", EntryPoint = "CreateFontIndirectW")]
    public static extern IntPtr CreateFontIndirect(LOGFONT lpLogFont);

    [DllImport("gdi32.dll")]
    public static extern IntPtr SelectObject(IntPtr hdc, IntPtr hgdiobj);

    [DllImport("gdi32.dll")]
    public static extern bool DeleteObject(IntPtr hgdiobj);

    public const int HORZSIZE = 4; // Horizontal size in millimeters
    public const int VERTSIZE = 6; // Vertical size in millimeters
    public const int HORZRES = 8; // Horizontal width in pixels
    public const int VERTRES = 10; // Vertical height in pixels
    public const int LOGPIXELSX = 88; // Logical pixels/inch in X
    public const int LOGPIXELSY = 90; // Logical pixels/inch in Y
    [DllImport("gdi32.dll")]
    public static extern int GetDeviceCaps(IntPtr hdc, int nIndex);
  }
}